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Tire Design Report

This document contains analysis of tire performance characteristics for a Formula Bharat race car from SRM University. It includes graphs and data on forces, moments, slip angles, and cornering stiffness at different loads and inclinations for 18x6 R25B tires with 6-inch and 7-inch rim widths. The analysis aims to compare tire performance between the two rim widths through metrics like longitudinal force, aligning moment, and cornering stiffness at varying slip angles and inclinations.

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Satvik Vatsa
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95 views20 pages

Tire Design Report

This document contains analysis of tire performance characteristics for a Formula Bharat race car from SRM University. It includes graphs and data on forces, moments, slip angles, and cornering stiffness at different loads and inclinations for 18x6 R25B tires with 6-inch and 7-inch rim widths. The analysis aims to compare tire performance between the two rim widths through metrics like longitudinal force, aligning moment, and cornering stiffness at varying slip angles and inclinations.

Uploaded by

Satvik Vatsa
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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FORMULA BHARAT 2019

Car #07
SRM IST, Chennai

TIRES
2019
HOOSIER 18*6 R25B 10’’ (RIM WIDTH 7’’)
FYSA: AT INCLINATION 0 deg

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 2


FYSA: AT VARYING INCLINATION

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 3


FXSR: AT INCLINATION 0 deg

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 4


FXSR: AT VARYING INCLINATION

These are the longitudinal forces generated at different slip angles at various normal loads.

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 5


ALIGNING MOMENT( Mz ) vs SA: AT INCLINATION 0 deg

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 6


ALIGNING MOMENT( Mz ) vs SA: AT VARYING IA

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 7


Friction Ellipse:

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 8


Rolling Resistance:

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 9


Pneumatic trail vs Slip angle:

Peak pneumatic trail is 40 mm at 0 slip angle as shown the plot.

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 10


COMPARISON BETWEEN RIM WIDTH 6’’ AND 7’’
FYSA: AT INCLINATION 0 deg

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 11


FYSA: AT VARYING INCLINATION

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 12


FXSR: AT INCLINATION 0 deg

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 13


FXSR: AT VARYING INCLINATION

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 14


ALIGNING MOMENT( Mz ) vs SA: AT INCLINATION 0 deg

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 15


MzSA: AT VARYING INCLINATION

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 16


Cornering stiffness @ 0 deg IA

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 17


Cornering stiffness for 6inch rim width @ varying IA

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 18


Cornering stiffness for 7inch rim width @ varying IA

CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 19


CAMBER RACING - Department of Automobile Engineering, SRM University, Chennai 603203. 20

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